Locomotive.



l a sw o l. A. SEIDERS.

LOCOMOTIVE.

APPLICATION FILED JULY 8,1916.

Patented June 11, 1918.

3 SHEETSSHEET I- I. A. SEIDERS.

LOCOMOTIVE. APPLICATION man JULY 8,-l9I6.

Pafented June 11, 1918.

3 SHEETS-SHEET 2- l. A. SEIDERS.

LOCOMOTIVE.

APPLICATION FILED JULY 8. I9l6.

I %fi9,32520 Patenfed June 11, 19186 3 SHEETS-SHEET 3.

menses.

bnrren snares Murmur IRWIN A. SEIDERS, 0F READING, PENNSYLVANIA, ASkBIGlNQIt 0F ONE-HALE T0 HIMMJLF AZNJD ONE-HALF 'JLO AGNEW T. DICE, JR, 015 READING, PENNSYLVMIML- ocoruorrvnspecification of Letters Patent. Patented Jimmie Lilli, 19118 Application filed July 1916. Serial at. issues.

To all whom "it may concern Be it known that l, IRWIN A. Snipers, a citizen of the United States of America, re-

siding in Reading, in the county of Berks,

in the State of Pennsylvania, have invented certain new and useful Improvements in Locomotives, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part thereof.

My present invention comprises improvements in the construction of a locomotive having superheating provisions, the

provements being devised with the general object of preventing objectionable spark discharge from the locomotive smoke stack and at the same time securing a desirable by it, reference should tie-had to the eethe sides of the bank of tubes C. The fire tubes C and CA open into the smoke box D companying drawings and descriptive matter in which i have illustrated and described preferred embodiments of my invention.

. Of the drawings:

Figure 1 is a sectional elevation of a portion of a locomotive embodying my present invention;

Fig. 2 is a front end elevation of the loco motive shown in Fig". l with parts broken away and in section; and

Fig. 3 is a view taken similarly; to Fig. 1 showing a somewhat difierent construction. I

In the drawings and referring first to the construction shown in Fig. l, A. represents the boiler shell of a locomotive; B the front tube sheet thereof; the fire tubes in which the superheater pipes T are inserted, and CA the smaller fire tubes not containing superheater pipes and located'helow and at frcm the upper end oflwhich the smoke stack E leads. Locate d in the smoke box D are an. exhaust pot Gr, an exhaust nozzle proper G and a chambered head or super heater T U of usual construction to which the superheater pipes T are connected and from which the usual steam pipes F run to the engine cylinder.

Also located within the smoke box D are provisions for preventing the emission of sparks from the locomotive smoke stack E. These provisions, as shown, are substantially identical with the spark arresting provisions disclosed in the said Patent No. 1,174,623. As shown in Figs. 1 and 2, the spark arresting provisions comprise a spark breaker plate H extending across the smoke box D approximately between the levels of the upper and the lower edges of the bank of fire tubes C. As shown the spark breaker plate H is connected at its upper edge to a horizontal plate IB which may be connected in turn at its ends to the op osite sides of the boiler shell as by means 0 the brackets 1 and is connected at its rear edge to a vertical plate IA which is secured at its upper edge to the chambered head U in front of the superheater pipes T. The. spark breaker plate H in the particular form shown is provided with apertures H formed by punching out tongues H which project from the surface of the plate and are downwardly inclined to deflect cinders or coals passing through the apertures H toward the bot tom of the smoke box. Between; the rear edge of the body of the superheater "l" U and the tube sheet B is interposed a horizontal plate l which is shown as connected to the tube sheet by means of an angle bard.

The smoke box of the locomotive is divided into an inlet compartment receiving the hot gases issuing from the fire tubes, and an outlet compartment open to the smoke stack E. These compartments are fill separated by a pervious or screen wall which, I

in the preferred construction illustrated comprises a table li/f having two downwardly inclined side sections formed of sheet metal and a horizontal bottom section m. The

latter seats upon and is clamped to the en haust pot ix and is apertured to form n wil Mil

wire netting or perforated metal L extends parallel to the spark breaker plate H in front of the latter and is connected at its lower edg to the rear edge of the table M, and has its upper edge clamped against a downturned flange portion of the plate IB. The side edges of the netting L between the upper edges of the table M and the ends of the plate 1B are secured to the boiler shell.

A spark arresting screen LA extends from the front edge of the table M to the top and sides of the boiler shell. This screen preferably comprises a main section and a removable door section LB. The branches of the steam pipe F pass through apertures formed in the inclined portion of the table M, suitable provisions being made for preventing the passage of Cinders or sparks along the joints between the steam pipes and the walls of the apertures in the table M. Located in the outlet compartment of the smoke box between the front and rear screens LA and L is a chimney or mixing nozzle R formed as shown with an enlarged lower portion R and an axially adjustable upper or telescopic connection R The chimney R is held in place by brackets S secured to the metal sides S extending between the table M at the opposite side edges of the perforated portion m, and the portion of the stack E which extends into the upper end of the smoke box.

When superheated steam is not being used it is necessary or at least highly desirable to preventthe free passage 01. the gaseous products of combustion from the fire box through the fire tubes C. For the purpose of regulating the flow through the fire tubes C, a downwardly inclined baiiie or partition plate V has its rear upper edge secured to the tube sheet B at a level between the bottom row of fire tubes CA and the upper row of fire tubes (1 Also projecting forwardly from the tube sheet B at the opposite sides of the bank of fire tubes C are two vertical partition plates VA. Located between the the lower edge of the plate IA and between the plates VA, are damper provisions which, as shown, comprise a plurality ofdampers W. The dampers W are shown as formed with trunnion like end portions W" jour-' I na led in the partition walls VA. The

dampers W are connected for simultaneous operation by means of crank arms W and links W Advantageously, means are provided for automatically turning the dampers W into the horizontal open position indicated in dotted lines in Fig. 1 when superheated steam is being used, and when superheated steam is not being used, for moving the dampers into the closed position shown in full lines in Fig. 1. For this purpose one of the damper shatlts W is shown as extended through the locomotive shell and can of combustion from the combustion chamber 1 of the locomotive boiler pass through the time tubes GA lying below and at the sides of the tubes C. When superheated steam is being used and the dampers W are in the open position the gaseous products of combustion pass through the fire tubes G as well as through the fire tubes CA.

In operation, when superheated steam is being used and the dampers W are in the open position, the gaseous products of combustion passing through the fire tubes C i111- pinge against the spark breaker plate H, and, if already small enough, pass through the apertures H or are broken up by the impact so that they may pass through the apertures or are deflected'to the lower end of the smoke box below the level of the table draft, or collects on the table M and rattles down on the perforated portion m of the latter. From the table portion m, the suction created by the exhaust discharge from the exhaust pot G sweeps these particles, all of which are fine enough to be removed by the draft, up through the chimney R and out of the smoke box through the smoke stack E. The cinders and fuel particles passing out of the fiuesOA when the dam pers W are in their open osition are, if of any appreciable size an weight, for the most part broken up by their impingement against the exhaust pot-G or-against the sides and front end wall of the smoke box. The particles of solid material collecting on the inner wall of the boiler shell below the table M are continually being sucked up through the apertured portion 912. of the table M and drawn, out of the smoke box through the chimney R and stack E, especially as in the usual operation of the locomotive, the particles tending to collect on the; bottom wall of the shell are continuously being tossed about with the result of breaking up the ortions not broken small enoughby the spar r breaker plate H to pass through the screens L and LA and the apertured'portion of the table M. I

When superheated steam is not bein used and the dampers W arein their close position, a port-ion of. the gaseous products of combustion issuing from the front ends of the fire tubes CA may pass up into the space between the dampers and the spark'breaker plate Hand thence through the a ertures of the latter and the rear screen into the nasasea bustion chamber of the boiler must pass through the fire tubes CA.

With the construction .described the important practical advantages characterizing the invention of the prior Patent No. 1,174,623, of simplicity, mechanical strength, durability, easy maintenance of tight joints, ease of and accessibility for inspection, adjustment and repairs, and the efi'ective prevention of an undesirable discharge of sparks through the smoke stack are obtained,

, tmdthese advantages are obtained without appreciable iHtB E If-XEIQDCB with a direct draft and without i'equiringia small exhaust nozzle and large back pressure, and insure the same good combustion and consequent decrease in coal consumption with a locomotive having superheating provisions which have heretofore characterized the practical use of the invention of the earlier patent. At the same time the present invention gives the special advantages with super-heating locomotives to whicl1 reference has already been made.

In the modified construction shown in Fig.

3, the advantages of the construction shown in Figs. 1 and 2 are obtained to a substantial degree with a somewhat simpler construction. The construction shown in Fig. 3 differs from that shown in Figs. 1 and 2 essentially in that asingle damper WA is employed and in that the plate IC corresponding generally in its location and purpose to the plate IA. of the construction first described, is extended downward to a-considerably greater distance. In consequence the spark breaker plate HA and the rear screen L of the construction shown in Fig. 3, are of less vertical depth than the general corresponding spark breaker plate H and screen L of the construction first described. With the construction shown in Fig. 3, however, a fairly direct draft is obtained without the complication of a plurality of dampers. The single damper WA of the construction shown in Fig. 3 is pivoted slightly in front of the tube sheet C and swings across the spark breaker plate HA as it is moved from its closed to its wide open position. The bafiie plate VB of Fig. 3 is substantially narrower than the plate V of the construction shown in Fig. 1.

While in accordance with the provisions of the statutes I have illustrated and de scribed the best forms of my invention now known to me, it will be apparent to those tion of the smoke box,

nism adapted, when open, to

ters Patent, is

1. In a locomotive, the combination with the boiler shell, the tube sheet dividing the steam from the smoke box, the smoke stack outlet, the fire tubes connected to said tube sheet, the exhaust nozzle located in the lower porthe superheater pipes located in some of said tubes, and the chambered superheater header, a spark breaker plate and damper mechanism adapted when open to permit the direct passage from said mechanism into contact with breaker plate of products of combustion issuing from the fire tubes containing superheater pipes and to divert away from said plate the gaseous products of combustion is suing from the fire tubes not perheater pipes, and adapted when closed to permit the products issuing from the fire tubes not containing superheater pipes to pass into direct contact with said spark breaker plate while preventing the passage of gaseous products of combustion through the fire tubes containing"uperheater pipes.

2. In a locomotive, the combination with the boiler shell, a tube sheet dividing the steam and water space of the locomotive from the smoke box, the smoke stack outlet, the fire tubes connected to said tube sheet, the exhaust nozzle located in the lower portion of the smoke box, the superheater pipes located in the. upper fire tubes and the chambered super-heater header, of a screen system extending across the smoke box between the said tube sheet and said smoke stack outlet and comprising a substantially vertical portion lying in front of the tire tubes, a perforated spark breaker plate lying to the rear of said screen portion and a damper mechadirect the gaseons products issuing from the fire tubes containing superheater pipes against said spark breaker plate and to divert the gas eous products issuing from the other fire tubes away from the said spark breaker plate, and adapted, when closed, to prevent the passage through the fire tubes containing superheater pipes of gaseous products of combustion without interfering with the passage of gaseous products issuing from the fire tubes not containing superheater pipes into direct engagement with said spark breaker plate.

IRWIN A. SEIDERS.

containing suand water space of the locomotive the said spark 

